AssemblyInstance object has null BoundingBox property

[Anonymous]

I have an AssemblyInstance object and I want to get its boundingbox property.

I use the following code:

BoundingBoxXYZ boundingBoxXYZ = ele.get_BoundingBox(null);

But the result object boundingBoxXYZ is always null.

Does anyone knows why this object cannot get the BoundingBox property? Thanks for your help.

[naveen.kumar.t]

Hi @Anonymous ,

Try using 

BoundingBoxXYZ boundingBoxXYZ = ele.get_BoundingBox(document.activeview);

Check the remarks section in the below link

https://www.revitapidocs.com/2016/def2f9f2-b23a-bcea-43a3-e6de41b014c8.htm